Home / 2,972.90-4,102.75-1,714.16

Finding the Fourth Proportional to 2,972.90, 4,102.75 and 1,714.16

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Solution

The fourth proportional to 2,972.90, 4,102.75 and 1,714.16 is: 2,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.90 : 4,102.75 = 1,714.16 : x
  2. Step 2: Convert to fraction form
    2,972.90/4,102.75 = 1,714.16/x
  3. Step 3: Cross multiply
    2,972.90x = 4,102.75 × 1,714.16
  4. Step 4: Simplify right side
    2,972.90x = 7,032,769.94
  5. Step 5: Solve for x
    x = 7,032,769.94/2,972.90
  6. Step 6: Final answer
    x = 2,365.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.